A ring consisting of two parts ADB and ACB of same conductivity k carries an amount of heat H. The ADB part is now replaced with another metal keeping the temperatures T_(1) and T_(2) constant. The heat carried increases to 2H. What should be the conductivity of the new ADB part? Given (ACB)/(ADB)=3 :

A ring consisting of two parts ADB and ACB of same conductivity k carr

1.	A ring consisting of two parts ADB and ACB of same conductivity k carries an amount of heat H. The ADB part is now replaced with another metal keeping the temperatures T_(1) and T_(2) constant. The heat carried increases to 2H. What should be the conductivity of the new ADB part? Given (ACB)/(ADB)=3 :
Answer» `(7)/(3)` k 2 k `(5)/(2)`k 3 k Answer :A